Finding Materials

I need to find were to get some LEDs, wire, battery connector and resistor, plus some wood for the box that will hold everything inside. I know i can get all of the above at either Dicksmith or Jaycar and the wood from Bunnings. The last item i need to start construction and the most important of them all, is a piece of sheet metal, preferably copper or very thin tin.  Im not too sure where im going to find the metal but will google it and ask around. Once i have located and brought all the materials i can start constucting as testing my design. With all going to plan i will have a test model before tuesday 24th next week.